[go: up one dir, main page]

EP3779148A3 - Lubrication of journal bearing during clockwise and counter-clockwise rotation - Google Patents

Lubrication of journal bearing during clockwise and counter-clockwise rotation Download PDF

Info

Publication number
EP3779148A3
EP3779148A3 EP20196529.0A EP20196529A EP3779148A3 EP 3779148 A3 EP3779148 A3 EP 3779148A3 EP 20196529 A EP20196529 A EP 20196529A EP 3779148 A3 EP3779148 A3 EP 3779148A3
Authority
EP
European Patent Office
Prior art keywords
journal bearing
gear
clockwise
lubrication
turbofan engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20196529.0A
Other languages
German (de)
French (fr)
Other versions
EP3779148A2 (en
EP3779148B1 (en
Inventor
Christopher M VALVA
Brian P CIGAL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
Raytheon Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Raytheon Technologies Corp filed Critical Raytheon Technologies Corp
Priority to EP23198391.7A priority Critical patent/EP4273374A3/en
Publication of EP3779148A2 publication Critical patent/EP3779148A2/en
Publication of EP3779148A3 publication Critical patent/EP3779148A3/en
Application granted granted Critical
Publication of EP3779148B1 publication Critical patent/EP3779148B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • F01D25/20—Lubricating arrangements using lubrication pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/06—Arrangements of bearings; Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/32—Arrangement, mounting, or driving, of auxiliaries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0441—Arrangements of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0479—Gears or bearings on planet carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0493—Gearings with spur or bevel gears
    • F16H57/0495—Gearings with spur or bevel gears with fixed gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
    • F01M2001/0238—Rotary pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0253—Pressure lubrication using lubricating pumps characterised by the pump driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/98—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/20—Rotary pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Details Of Gearings (AREA)
  • Rotary Pumps (AREA)

Abstract

There is provided a lubrication system for a gear-turbofan engine, the lubrication system comprising: an epicyclic gear-train including a journal bearing; and a bi-directional auxiliary pump operatively coupled to a fan of the gear-turbofan engine, the bi-directional auxiliary pump including a first pump port and a second pump port; wherein rotation of the fan below a predetermined operational speed range of the gear-turbofan engine in a first direction causes the bi-directional auxiliary pump to transfer lubricant outwardly from the first pump port to the journal bearing and wherein rotation of the fan below the predetermined operational speed range of the gear-turbofan engine in a second direction, which is opposite to the first direction, causes the bi-directional auxiliary pump to transfer lubricant outwardly from the second pump port to the journal bearing.
EP20196529.0A 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation Active EP3779148B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23198391.7A EP4273374A3 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361846280P 2013-07-15 2013-07-15
PCT/US2014/046123 WO2015009535A1 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP14825907.0A EP3022420B8 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP14825907.0A Division-Into EP3022420B8 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP14825907.0A Division EP3022420B8 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP23198391.7A Division EP4273374A3 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Publications (3)

Publication Number Publication Date
EP3779148A2 EP3779148A2 (en) 2021-02-17
EP3779148A3 true EP3779148A3 (en) 2021-04-21
EP3779148B1 EP3779148B1 (en) 2023-09-20

Family

ID=50481738

Family Applications (3)

Application Number Title Priority Date Filing Date
EP14825907.0A Active EP3022420B8 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP23198391.7A Pending EP4273374A3 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP20196529.0A Active EP3779148B1 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP14825907.0A Active EP3022420B8 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP23198391.7A Pending EP4273374A3 (en) 2013-07-15 2014-07-10 Lubrication of journal bearing during clockwise and counter-clockwise rotation

Country Status (3)

Country Link
US (3) US8702373B1 (en)
EP (3) EP3022420B8 (en)
WO (1) WO2015009535A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8702373B1 (en) 2013-07-15 2014-04-22 United Technologies Corporation Lubrication of journal bearing during clockwise and counter-clockwise rotation
US10167873B2 (en) 2013-09-19 2019-01-01 United Technologies Corporation Dual direction windmill pump for geared turbofan engine
FR3020410B1 (en) * 2014-04-29 2021-09-17 Snecma AIRCRAFT TURBOMACHINE WITH IMPROVED MECHANICAL POWER TAKE-OFF
US9416866B2 (en) * 2014-07-17 2016-08-16 Baldor Electric Company Vertical gear motor planetary gear lubrication system
US9528596B2 (en) 2014-08-06 2016-12-27 Baldor Electric Company Gear box with clutch having spring engagement and hydraulic disengagement
US9797499B2 (en) 2014-08-12 2017-10-24 Baldor Electric Company Method of installing a motor on a gear box
US9528594B2 (en) 2014-09-04 2016-12-27 Baldor Electric Company Lubrication system for a gear box and associated methods
US10161408B2 (en) * 2015-10-29 2018-12-25 United Technologies Corporation Manhattan dual FDGS aux pump design
US10570824B2 (en) * 2015-11-23 2020-02-25 United Technologies Corporation Near zero velocity lubrication system for a turbine engine
US10087849B2 (en) * 2016-04-08 2018-10-02 United Technologies Corporation Retention device for speed change mechanism in a gas turbine engine
DE102017108333A1 (en) * 2017-04-19 2018-10-25 Rolls-Royce Deutschland Ltd & Co Kg transmission device
US10787930B2 (en) 2018-03-23 2020-09-29 Raytheon Technologies Corporation Windmill lubrication gear train for lubricant system in a geared gas turbine engine
US12259036B2 (en) 2018-04-20 2025-03-25 Rtx Corporation Electric motor driven auxiliary oil system for geared gas turbine engine
GB201807203D0 (en) * 2018-05-02 2018-06-13 Rolls Royce Plc Oil tank filling system
US10982678B2 (en) 2018-05-21 2021-04-20 Raytheon Technologies Corporation Epicyclic drive for gas turbine engine lubricant pump
ES2935683T3 (en) * 2018-06-25 2023-03-09 Vestas Wind Sys As Pumping system to lubricate components of a wind turbine
US11306812B2 (en) 2018-09-28 2022-04-19 Ge Avio S.R.L. System and method for emergency lubricant flow at an aircraft gear assembly
CN109578143B (en) * 2018-12-10 2020-02-04 中国航发南方工业有限公司 Transmission box oil pumping device
US11162494B2 (en) * 2019-01-23 2021-11-02 Pratt & Whitney Canada Corp. Scavenge pump
FR3098258B1 (en) 2019-07-03 2021-07-16 Safran Aircraft Engines Tilting gear pump for a turbomachine, which can be incorporated into an aircraft engine lubrication circuit
FR3098240B1 (en) * 2019-07-03 2021-07-16 Safran Aircraft Engines ARRANGEMENT OF AERONAUTICAL TURBOMACHINES INCLUDING A LUBRICATION PUMP DRIVEN BY TWO RIGHT ANGLE GEARS
FR3106623B1 (en) * 2020-01-23 2022-10-07 Safran Aircraft Engines Lubrication device for an aircraft turbomachine, with circulation of lubricant in both directions of rotation of a pump
GB2592008A (en) * 2020-02-11 2021-08-18 Rolls Royce Plc System for supplying lubricant to a component
FR3108936B1 (en) * 2020-04-01 2022-02-25 Safran Aircraft Engines Turbomachine assembly comprising a lubrication pump
GB202005916D0 (en) * 2020-04-23 2020-06-10 Rolls Royce Plc Gas turbine engine lubrication system
WO2022058442A1 (en) 2020-09-18 2022-03-24 Vcst Industrial Products Bv Bidirectional volumetric pump
US20240426374A1 (en) * 2023-06-21 2024-12-26 General Electric Company Gearbox assembly lubrication system for a turbine engine
US20250020070A1 (en) * 2023-07-12 2025-01-16 General Electric Company Lubrication system for a turbine engine
US12228042B1 (en) * 2023-08-04 2025-02-18 General Electric Company Lubrication system for a turbine engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090278359A1 (en) * 2008-05-06 2009-11-12 Repower Systems Ag Positioning of a rotor of a wind power plant
US8230974B2 (en) * 2009-05-22 2012-07-31 United Technologies Corporation Windmill and zero gravity lubrication system for a gas turbine engine
US20130121854A1 (en) * 2011-11-10 2013-05-16 Gkn Walterscheid Gmbh Gearbox
EP2962016A1 (en) * 2013-02-26 2016-01-06 United Technologies Corporation Lubrication of journal bearing during clockwise and counter-clockwise rotation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860713A (en) * 1952-10-09 1958-11-18 Gen Motors Corp Power transmission system
JP3519544B2 (en) * 1996-05-17 2004-04-19 愛知機械工業株式会社 Fluid path around oil pump of electric vehicle reducer
JP2006105029A (en) * 2004-10-06 2006-04-20 Hitachi Ltd Oil pump
US7621117B2 (en) * 2006-06-19 2009-11-24 Pratt & Whitney Canada Corp. Apparatus and method for controlling engine windmilling
DE102006039608A1 (en) * 2006-08-24 2008-04-10 Rolls-Royce Deutschland Ltd & Co Kg Arrangement for energy extraction in a two-shaft engine
US7662059B2 (en) * 2006-10-18 2010-02-16 United Technologies Corporation Lubrication of windmilling journal bearings
US7849668B2 (en) * 2006-10-25 2010-12-14 United Technologies Corporation Rotor brake and windmilling lubrication system for geared turbofan engine
US8307626B2 (en) * 2009-02-26 2012-11-13 United Technologies Corporation Auxiliary pump system for fan drive gear system
US8381878B2 (en) * 2009-11-12 2013-02-26 United Technologies Corporation Oil capture and bypass system
US9970352B2 (en) * 2012-01-27 2018-05-15 United Technologies Corporation Turbomachine fan clutch
US8702373B1 (en) 2013-07-15 2014-04-22 United Technologies Corporation Lubrication of journal bearing during clockwise and counter-clockwise rotation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090278359A1 (en) * 2008-05-06 2009-11-12 Repower Systems Ag Positioning of a rotor of a wind power plant
US8230974B2 (en) * 2009-05-22 2012-07-31 United Technologies Corporation Windmill and zero gravity lubrication system for a gas turbine engine
US20130121854A1 (en) * 2011-11-10 2013-05-16 Gkn Walterscheid Gmbh Gearbox
EP2962016A1 (en) * 2013-02-26 2016-01-06 United Technologies Corporation Lubrication of journal bearing during clockwise and counter-clockwise rotation

Also Published As

Publication number Publication date
EP3022420B8 (en) 2020-11-04
EP4273374A3 (en) 2023-11-29
US20160146048A1 (en) 2016-05-26
EP3779148A2 (en) 2021-02-17
EP3022420A4 (en) 2017-04-12
US8702373B1 (en) 2014-04-22
EP4273374A2 (en) 2023-11-08
US20190383168A1 (en) 2019-12-19
EP3022420A1 (en) 2016-05-25
US11092037B2 (en) 2021-08-17
EP3022420B1 (en) 2020-09-23
US10577974B2 (en) 2020-03-03
WO2015009535A1 (en) 2015-01-22
EP3779148B1 (en) 2023-09-20

Similar Documents

Publication Publication Date Title
EP3779148A3 (en) Lubrication of journal bearing during clockwise and counter-clockwise rotation
EP4223987A3 (en) Reduced misalignment gear system
WO2015060912A3 (en) Dual direction windmill pump for geared turbofan engine
WO2015076903A3 (en) Fan drive gear system auxiliary pump monitoring system
GB2489021B (en) High speed flywheel
WO2015147949A3 (en) Auxiliary oil system for geared gas turbine engine
EP3346112A3 (en) Shield for arranging between a bearing and a rotating seal element
BR112014030695A2 (en) bearing, system for changing the inclination angle of the blades of a turbocharged engine propeller, and turbine engine
WO2014130239A3 (en) Auxiliary lubricant supply pump stage integral with main lubricant pump stage
WO2012072492A3 (en) Internal gear pump
MX2015013815A (en) Balancer device for an internal combustion engine.
MX2016012793A (en) Control apparatus for internal combustion engine.
EP3027877A4 (en) Gas turbine engine shaft bearing configuration
MX2018005839A (en) Lubricant flow regulating system and the axle assembly made therewith.
CL2014001596A1 (en) A protector for a rotary pump, which has a main body, an impeller housing, a transmission shaft, a seal arrangement, the protector provides access to adjust the seal arrangement, but obstructs access to the transmission shaft; and a rotary pump.
WO2014117889A3 (en) Internal gear pump
MX2015008033A (en) Method for balancing thrust, turbine and turbine engine.
GB2558152A (en) Gear pump journal bearing lubrication flow feed
EP3104032A3 (en) Clutch with redundant engagement systems
FR3003300B1 (en) OIL TRANSFER SYSTEM ON ROTATING SHAFT
WO2013012488A3 (en) Downhole motors with a lubricating unit for lubricating the stator and rotor
MX2015015099A (en) Engine crankshaft.
IN2014DE01976A (en)
TWM475371U (en) Motor
IN2014DE02655A (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AC Divisional application: reference to earlier application

Ref document number: 3022420

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIC1 Information provided on ipc code assigned before grant

Ipc: F02C 7/06 20060101AFI20210315BHEP

Ipc: F01D 25/20 20060101ALI20210315BHEP

Ipc: F02C 7/32 20060101ALI20210315BHEP

Ipc: F02C 7/36 20060101ALI20210315BHEP

Ipc: F16H 57/04 20100101ALI20210315BHEP

Ipc: F01M 1/02 20060101ALI20210315BHEP

Ipc: F16N 13/20 20060101ALN20210315BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20211018

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230331

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CIGAL, BRIAN P

Inventor name: VALVA, CHRISTOPHER M

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602014088400

Country of ref document: DE

Owner name: RTX CORPORATION, FARMINGTON, US

Free format text: FORMER OWNER: RAYTHEON TECHNOLOGIES CORPORATION, FARMINGTON, CT, US

AC Divisional application: reference to earlier application

Ref document number: 3022420

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014088400

Country of ref document: DE

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: RTX CORPORATION

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231221

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231220

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231221

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1613552

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240120

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014088400

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240620

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240619

Year of fee payment: 11

26N No opposition filed

Effective date: 20240621

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240619

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230920

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL